baber/WOPTO huggingface dataset:
Patent GB-459805-A (GB)
Title: Mechanism for wrapping granular materials
IPC: B65B39/12
Filed: 1935-09-25
Abstract: 459,805. Wrapping-machines. FORGROVE MACHINERY CO., Ltd., and GROVER, F., 432, Dewsbury Road, Leeds. Sept. 25, 1935, No. 26544. [Class 94 (i)] A machine for wrapping measured quantities of granular material comprises a trough or funnel to receive the material, arranged for vertical reciprocation above and into a folding-box into which it thrusts the wrapper to form an open topped container, in combination with a plunger extending into the trough to prevent the material from falling into the trough until the latter has moved downwards into the folding-box, but after the trough has so moved, it clears the plunger to allow the material to fall into the container. The material feeding apparatus may be as described in Specification 456,234, [Group XVIII]. The feed hopper a is mounted above a cylinder b mounted on trunnions b<1>, one of which has a cam-actuated arm b<2> by means of which the cylinder is rocked through 60‹ from a filling position in register with the outlet a<1 >to the discharge position shown in Fig. 4. A plunger f is actuated by the engagement of a projection f<2> in a slotted arm g and links g<1> ... g<3> to draw a measured quantity into the cylinder at the filling position and to eject it into a shoot e at the discharge position. The shoot constitutes the upper part of a vertically sliding trough e<1> in which a plunger i operates. At the moment of discharge, the plunger is in a position to prevent the material falling from the shoot e. A wrapper m is fed into position above a folding box l, l<1>, which may be of the construction described in Specification 456,389 or 457,064. The trough e<1> descends into the folding box and carries the wrapper with it to fold it into the form shown in Fig. 11. The plunger i remains stationary until the material has passed down into the folded wrapper, and then descends to press the wrapper and material into a frame n. The trough is slightly raised to allow the material to fill the base of the packet during the compression, and the trough and plunger are then raised clear to allow folders to close the top of the packet. Folders o, Fig. 1, are rocked on an axis o<3> to make the folds m<3>, m4, Fig. 13, and a folder o<2> turns down the flap m<5>. The frame n which carries the packet' is one of a series on a chain n<1> moved intermittently by a ratchet n<2> and pawl n<3>. The first movement to the right causes the flap m<6> to be folded down by a box q, which may be heated if the wrapper is of waxed paper. At a subsequent station, a cold plate r is pressed on to the top folds to ensure sealing, and, at the next, a transversely fed label is pressed on to the packet by a plate s. A final pressure is given by a plate t. The plates r, s, t are carried on a single arm w pivoted at w<1>. A retractible stop n<6> prevents premature displacement of the frame n. The packets are discharged into a trough v by a plunger u forming the base of the frame n<4>.
Patent GB-360107-A (GB)
Title: Improvements in or relating to thermionic valve systems employing ganged tuning condensers
IPC: H01G5/38
Filed: 1930-09-05
Abstract: 360,107. Wireless receiving apparatus. GRAMOPHONE CO., Ltd., Hayes, Middlesex, and PUGH, D. W., 72, Uxbridge Road, West Ealing, London. Sept. 5, 1930, No. 26594. [Class 40 (v).] In a valve receiver employing ganged condensers in which the movable plates of each condenser are mounted on a common spindle a separate conductor connects each set of moving plates either to a common earthed terminal bar or to the earthed end of the inductance coil with which the condenser is associated. Fig. 1 shows the condenser 'shaft 2 journalled in a series of supporting members 5 from which the connections 6 are taken to the earthed bar 1. Fig. 2 shows a modification in which a spring member 9 makes contact with a sleeve 8 on the rotor shaft 2 and is formed with a soldering tag 10.
Patent GB-261353-A (GB)
Title: Improvements in the control of the supply of fuel to diesel cycle or mixed cycle internal combustion engines
IPC: F02M59/34
Filed: 1926-10-25
Abstract: 261,353. Grayson Engine Co., Ltd., (Assignees of Grayson, G. W.). Nov. 11, 1925, [Convention date]. Suction pipes.-Fuel pumps for internalcombustion engines arc provided with a variable opening in the supply pipe to the pumps whereby the output is controlled and the speed and power of the engines varied. The constant stroke pump 4 takes its supply from a pipe 8 which leads to a hollow sleeve 9 which is adjustable on its axis whereby the port 11 thereto is brought wholly or partially into register with the duct 12 leading to the suction valve 13. The control sleeve is shown with three ports controlling simultaneously a battery of three pumps, but a single controlling means may be used in the pipe 8.
Patent GB-907941-A (GB)
Title: Improvements in or relating to electric switches
Inventor: SCOTT HAROLD RICHARD
IPC: H01H21/28
Filed: 1958-08-20
Abstract: 907,941. Retractive switches. BIRMING- HAM SMALL ARMS CO. Ltd. Aug. 19, 1959 [Aug. 20, 1958], No. 26711/58. Class 38 (5). A limit switch has a rotatable spindle carrying a contact arm 3 on which are arranged spring- loaded bridging contacts 19, the arm being biased by a rocker 7 acted on by the spring- loaded operating lever 13. In order that the contact arm may be removed and replaced easily, the spindle and the arm are provided with the co-operating parts of a toothed clutch. As the teeth have inclined flanks, the two parts can be assembled loosely and then the nut 39 is tightened. This pulls the clutch parts together and as the parts rotate into alignment the spring loading is again effective.
Patent GB-722572-A (GB)
Title: Improvements in or relating to apparatus for making sliding clasp fasteners
Inventor: SUTTON FRANCIS PAUL
IPC: B21D53/52
Filed: 1953-11-06
Abstract: 722,572. Sliding-clasp fasteners. LIGHTNING FASTENERS, Ltd. Nov. 6, 1953 [Oct. 24, 1952], No. 26721/52. Class 44. In a machine for producing stringers for sliding clasp fasteners including an intermittently-actuated clamping means for securing fastener members to the stringer tape and an intermittently-rotated tape-feed wheel which is rotated through a substantially constant angle during each period of intermittent rotation for at least the greater part of each complete cycle of intermittent rotations and the clamping means being actuated between the periods of intermittent rotation to secure a fastener member to the tape, the periphery of the tape feed wheel whilst being continuous has a part thereof which is modified by the provision of either a projection or a depression so that the tape when in contact with the modified part is fed, during each period of intermittent rotation through the substantially constant angle, by a greater or lesser distance than that through which it is fed during another such period when in contact with the non-modified part of the wheel. As applied to a known type of machine in which a die table is provided with twelve equidistantly-spaced dies 3 for carrying a fastener member from a shearing and indenting position to a position for clamping on a tape 5 and in which V-section wire 7 is intermittently fed through a shearing block 9 and a fastener blank is sheared off by a reciprocating knife 11, and is carried to one of the dies 3 for indentation by a punch 13 and the knife then recedes and the table moves to present the next die to the knife and also in which the tape is fed intermittently upwardly by a wheel 15 and is inserted in a fastener member while the table is stationary, the fastener member being clamped to the tape which is then withdrawn from the table before the latter commences to rotate, the wheel 16 is replaced by a wheel 19, Fig. 2, having a projection 21 on the periphery thereof which effects a variation in the spacing of the fastener members during contact of the tape with the projection. In another arrangement, Fig. 3, (not shown) the wheel 15 is replaced by one having a depression on its periphery. Specification 133,729, [Class 44], is referred to.
Patent GB-1439803-A (GB)
Title: Recovery of mercury
IPC: C01G13/04
Filed: 1973-06-05
Abstract: 1439803 Electrolytic recovery of mercury using mercury cathode IMPERIAL CHEMICAL INDUSTRIES Ltd 13 May 1974 [5 June 1973] 26731/73 Addition to 1339261 Heading C7B [Also in Division C1] Mercury is removed from chlorine containing waste brine from a mercury cell by adding sulphide or hydrosulphide to the brine in an amount to produce a redox potential of the brine, relative to a saturated KCl-calomel electrode of a value more negative than +0.45 volts so as to precipitate the mercury as mercury sulphide. The mercury sulphide precipitate is removed by passage of the brine downwards through a filter comprising at  least two directly superimposed layers of granular filtration material whose average particle size decreases and whose specific gravity increases from layer to layer from the top of the filter downwards. The precipitated mercury sulphide is removed from the filter by treatment with a liquor, such as sodium hypochlorite in brine, which dissolves the mercury sulphide and the mercury rich liquor drained off. Metallic mercury can be obtained from such liquors by recycling the liquor to a mercury cell and reducing electrolytically mercury. It is preferred to remove as much chlorine as possible from the mercury containing brine before precipitation of the mercury sulphide and further to remove insoluble matter, such as graphite, from the waste brine by for e.g. filtration. Examples of suitable materials for making mixed media filters include anthracite, coal, activated carbon, graphite, quartz, flint, silica, magnesia, alumina, garnet and sand.
Patent GB-986722-A (GB)
Title: Improvements in or relating to couplings
IPC: A47F5/06
Filed: 1963-07-05
Abstract: 986,722. Pipe connections; securing articles on shafts. O. UEBE. July 5, 1963 [July 6, 1962], No. 26796/63. Headings F2G and F2U. [Also in Division A4] A coupling for clamping a member to a pipe, rod, shaft or the like comprises a sleeve 2 insertable into a bore extending through said member, the sleeve at one end having outer screw threads 2a the flank angle of which is between 80 degrees and 110 degrees and an outwardly divergent axially slit conical surface at the opposite end, a flanged tightening screw 3 and a flanged counter ring 1 having a conical surface engageable with said outwardly divergent conical surface. In the embodiment shown in Fig. 1 a shelf 5 is connected to a pipe 4 by tightening the screw 3 on the threaded end of the axially slotted sleeve 2, causing the conical surface at the other end of the sleeve 2 to be drawn into that of the counter ring 1, so tightening the sleeve 2 on the pipe at both ends. The pipe may be of other than circular cross-section and Fig. 12 shows a sleeve suitable for a square pipe which, in addition to an axial slot, has radial slits 2d at the corners of the rectangular space 2c and extending over the length of the conical surface 2b<SP>1</SP>.
Patent GB-1506525-A (GB)
Title: Fork-lift trucks
IPC: B66F9/22
Filed: 1975-06-25
Abstract: 1506525 Lift trucks LINDE AG 25 June [26 June 1974] 26849/75 Heading B8L A fork lift truck telescopic mast comprises a pair of columns, each comprising a tubular stationary mast section 11, a tubular inner section 10 which when fully retracted completely surrounds the stationary mast section 11, a tubular outer section 9 which when fully retracted completely surrounds the stationary and inner mast sections, and a telescopic lifting piston and cylinder assembly including a piston 17 stationary with the mast section 11, a cylinder 93 movable with the outer mast section 9 and an intermediate hollow member 88 movable with the inner mast section 10. The piston 17 incorporates a working fluid passage 18 and external seals 19 engageable with the inside of the member 88 which through a plate 90, a tubular member 91 and a plate 92 is connected to the mast inner section 10. The cylinder 93 is secured at its upper end to the mast section 9 and its lower open end slides over the member 88 and is sealed therewith by a seal 94. Due to the ratio of areas within the piston and cylinder assembly, with supply of pressure fluid into the cylinder 93, it rises relative to the member 88 lifting the outer mast section 9, whereafter the member 88 rises lifting the inner mast section 10. The fork of the truck is secured to one end of a chain which passes over a sprocket on a cross-bar at the top of the outer mast section 9, and the other end of the chain is anchored to a cross-bar at the lower end of the member 88, whereby extension movement of the outer and inner mast sections effect elevation of the fork. In a further embodiment, Figs. 7 to 9 (not shown), the piston and cylinder assembly is modified to reduce the size of the associated column and the load lifting chain runs within the outer mast section up to the roller, to improve operator visibility.
Patent GB-262231-A (GB)
Title: Method of producing cylindrical formations or hollow bodies from veneer or thin sheet wood and apparatus for use in connection therewith
IPC: B27D1/08
Filed: 1925-10-27
Abstract: 262,231. Schlesinger, G. Oct. 27, 1925. Bending; ply wood sheets. - Cylindrical articles of ply-wood are made from a band which has been previously obtained by joining strips endwise with the grain running longitudinally, and is then wound under tension. Crossing of the fibres in the finished article is produced by winding one or more bands helically, as for example in a cablewinding machine, or by inserting cross strips as the winding proceeds. In a machine for winding according to the latter method, the band is led from a drum 1 across the machine bed 1<a> and wound on a drum 9, the end being clamped between two eccentric rollers 13. The drum 1 is braked by a brake band 7 to maintain tension on the veneer band, and is provided with handdriven gearing 4 to tighten up the band at starting. The drum 9 is hollow and is detachably mounted on a plate at one end. Longitudinal eccentrically-mounted supporting rods 14 are arranged inside the drum, which is driven by a drop worm 17, flexible connection 18 and bevel gearing 19. The cross strips are cut by a. hand or foot-operated cutter 44 from a second band drawn from a drum 40, through gluing rolls 42 up to a stop 43. A clamp for holding the wound veneer is shown in Fig. 10, and comprises a perforated steel band 36 provided with extensions 37 adapted to engage holes 26 in the veneer band. Hooks 38 are adapted to engage a link 39 at the other end of the clamp, mounted on a clamping lever 39<a>. The holes 26 are punched by a hand operated punch 25, the operation of which can only take place in one position of a disc 30, which is geared to rotate with the drum 9. The veneer band after clamping is cut off by a knife 35, and the drum with the clamped article detached. Heated rollers may be arranged to press the band on to the surface of the drum 9 during winding, and the drum itself may be heated internally by steam or otherwise.
Patent GB-808060-A (GB)
Title: Improvements in or relating to magnetic recording systems and circuit arrangements
IPC: G11B5/03
Filed: 1957-08-27
Abstract: 808,060. Magnetic recording apparatus. PHILIPS ELECTRICAL INDUSTRIES Ltd. Aug. 27, 1957 [Aug. 30, 1956], No. 26990/57. Class 40 (2). Remanent magnetization of a record head is avoided in a magnetic record system by including in the premagnetizing oscillator circuit a device which produces a decrease in amplification with increase of intensity of the premagnetizing current so that the said premagnetizing current increases to a value lower than that at which the oscillator current is limited by non- linear effects but exceeds the value required during recording and is equal to or higher than the value required to demagnetize the record head. In a first embodiment, this result is effected by a potentiometer 8, 9, Fig. 2, connected across the grid coil 7, the lower part 9 comprising a resistor with a negative temperature coefficient and determines the bias adjustment. At the instant of switching on the amplification is high but drops as the value of the resistor 9 drops. The thermal capacity of resistor 9 is chosen such that the maximum current, see Fig. 1, occurs between the value I1 at which non-linear distortion takes place, and a value 13 which is that required to ensure demagnetization of the head, as shown by curves band c, after which it stabilizes at the value I2 required for premagnetizing the head. Fig. 3 (not shown) illustrates a method employing a diode which is cut-off by the threshold voltage when first switched on but becomes conductive when the oscillation produced exceeds the threshold value. The voltage rectified by the diode charges a capacitor and decreases the conductance of the oscillator and by the suitable choice of time constant of a network it can be ensured that the restriction is not effective until the premagnetization current reaches at least the value I3.
Patent GB-482672-A (GB)
Title: Improvements relating to date-indicating devices
IPC: G04B47/00
Filed: 1936-10-05
Abstract: 482,672. Date indicators; straps and bands. PEARSON & SONS, Ltd., E. J., and LELY, G. P. Oct. 5, 1936, No. 26991. [Class 106 (iv)] [Also in Group XXV] A date indicator incorporated in a wrist strap comprises two rotatable discs 7, 8 pivoted at 9 to the middle one of three thicknesses 4A, 4B, 4C forming the strap. The upper disc 8 is cruciform and carries the tens of the date figures, the units being carried by the lower disc. The figures are viewed through apertures 11, 12 in the upper thickness 4A. Alternatively, the discs may be pivoted on separate axes or the indications may be carried on endless bands or slidable strips. In a modification, the date indicator is replaced by a calendar block of month sheets.
Patent GB-1523807-A (GB)
Title: Parachute assembly
IPC: B64D17/64
Filed: 1976-06-29
Abstract: 1523807 Parachutes AERAZUR CONSTRUCTIONS AERONAUTIQUES 29 June 1976 [10 July 1975] 27017/76 Heading B7G An extractor parachute 1 has its shroud lines 2 folded in zig-zag manner on a plate 3 which is ejected from the parachute pack 8 by means of a spring 5, and an intermediate line 6 connects the extractor parachute to the main parachute canopy 7 in such a manner that the traction applied to the canopy 7 by the parachute 1 is limited. This limitation may either be provided by a rope (11), Fig. 3 (not shown), which connects the line 6 to the apex of the canopy 7 and breaks at a predetermined tension, or the line 6 may be connected to a central shroud line (9), Fig. 4 (not shown). In the latter case the line 6 is attached to the canopy apex by means of a strap (10) which is of sufficient length to be slack when the main parachute is fully deployed. The plate may or may not be permanently connected to the extractor 'parachute.
Patent GB-1473175-A (GB)
Title: Microwave electronic tube
IPC: H01J23/027
Filed: 1974-06-18
Abstract: 1473175 Discharge tubes THOMSON-CSF 18 June 1974 [19 June 1973] 27044/74 Heading H1D In a linear beam microwave tube at least part of the collector has its axis of symmetry offset from but parallel to that of the electron beam, to reduce the escape of secondary and reflected electrons from the collector back into the interaction space, and to reduce-by reason of their differing transit times back to the collector entrance-the modulation of such electrons as do escape. As shown, an initial portion 11 of the collector may have its axis coincident with that of the beam; the closed end of the collector may be obliquely truncated (Fig. 3, not shown); at least a portion of the inner collector surface may be coated with an unspecified non- secondary-emissive material; and the collector may be constituted by a sequence of sections insulated from one another and held at different potentials. Travelling-wave tubes are referred to and a multicavity klystron is described (Fig. 5, not shown).
Patent GB-514599-A (GB)
Title: Improvements in or relating to the manufacture of leading-in wires for electric lamps and the like
IPC: H01K3/00
Filed: 1938-04-22
Abstract: 514,599. Leading-in wires for incandescent lamps. EDISON SWAN ELECTRIC CO., Ltd., and HANNAFORD, A. April 22, 1938, No. 27045/39. Divided out of 513,946, [Group XXII] [Class 39 (ii)] A composite-leading-in wire for electric lamps and the like, prepared as described in Specification 513,946 has its fusible portion encased in a glass tube by automatic means operating in synchronism with the machine in which the welded composite wires are produced. The turret 54 driven step-by-step from the welding machine carries a number of double jaws 70 which, as they reach the position I, are opened by stationary cam formations co-operating with levers associated with the jaws. Sections of glass tubing are fed from the magazine 55 and automatically carried round into the open jaw by the transfer mechanism described in Specification 223.204. [Class 39 (ii)], whereupon the jaws close under spring action. The tube is carried round to position III in which position a composite wire element is threaded from the welding machine through a guide 38 and through the tube. At subsequent successive positions of the turret, the tube is welded over at its ends on to the fuse wire and finally at position XI the completed element is released.
Patent GB-171847-A (GB)
Title: Improvements in hair curlers or wavers
IPC: A45D2/36
Filed: 1920-09-24
Abstract: 171,847. Battisti, P. A. Sept. 24, 1920. Hair-curling appliances.-A hair-curler comprises a metal tube 1, Fig. 1, containing an electric resistance, and provided with an insulating-handle 20 and with a hair-retaining device consisting of a length of wire 12 passing through the handle and having a spring clip 13. The resistance wire 4 is. wound on a core 2 and insulated by layers 3, 7 of heat-resisting material, such as asbestos paper, and its ends are secured to terminals 6, 9 in the handle 20, the flexible leads 10 being passed through a screw cap 11. Alternatively, a socket and plug may be used. Several curlers are preferably wired in series, with a common switch 15, Fig. 3, to a plug 14 for connection to a lighting-circuit ; or they may be in parallel with separate switches. To keep the heater from contact with the head, a split tube when wound on the heater, or heat-insulating washers may be secured to the heater.